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  1. /*
  2.  * Copyright (C) 2006 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #include <test.h>
  30. #include <print.h>
  31. #include <atomic.h>
  32. #include <debug.h>
  33.  
  34. #ifdef CONFIG_BENCH
  35. #include <arch/cycle.h>
  36. #endif
  37.  
  38. void test_atomic1(void)
  39. {
  40. #ifdef CONFIG_BENCH
  41.     uint64_t t0 = get_cycle();
  42. #endif
  43.     atomic_t a;
  44.  
  45.     atomic_set(&a, 10);
  46.     printf("Testing atomic_set() and atomic_get().\n");
  47.     ASSERT(atomic_get(&a) == 10);
  48.     printf("Testing atomic_postinc()\n");
  49.     ASSERT(atomic_postinc(&a) == 10);
  50.     ASSERT(atomic_get(&a) == 11);
  51.     printf("Testing atomic_postdec()\n");
  52.     ASSERT(atomic_postdec(&a) == 11);
  53.     ASSERT(atomic_get(&a) == 10);
  54.     printf("Testing atomic_preinc()\n");
  55.     ASSERT(atomic_preinc(&a) == 11);
  56.     ASSERT(atomic_get(&a) == 11);
  57.     printf("Testing atomic_predec()\n");
  58.     ASSERT(atomic_postdec(&a) == 11);
  59.     ASSERT(atomic_get(&a) == 10);
  60.  
  61.     printf("Test passed.\n");
  62. #ifdef CONFIG_BENCH
  63.     uint64_t dt = get_cycle() - t0;
  64.     printf("Time: %.*d cycles\n", sizeof(dt) * 2, dt);
  65. #endif
  66.     return;
  67. }
  68.